High Impact Winter Storm This Weekend

A high impact winter storm is expected Saturday night through Monday morning which could bring heavy snow, freezing rain, and blizzard conditions. Monitor the forecast for the latest updates and make appropriate preparations! Read More >

Current conditions at

Decorah (KDEH)

Lat: 43.28°NLon: 91.73°WElev: 1158ft.

Overcast

27°F

-3°C

Humidity 80%
Wind Speed Calm
Barometer 30.10 in
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Last update 14 Mar 2:55 am CDT
Extended Forecast for

6 Miles NNE Castalia IA

Winter Storm Watch March 15, 01:00am until March 16, 01:00pm
Click here for hazard details and duration
Winter Storm Watch
  • Overnight

    Overnight: Mostly cloudy, with a low around 26. Calm wind.

    Low: 26 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 30 percent chance of snow, mainly before 3pm.  Mostly cloudy, with a high near 39. Light southeast wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 18 mph.

    High: 39 °F

    Chance Snow

  • Saturday Night

    Saturday Night: Rain and snow likely before 3am, then rain likely between 3am and 4am, then rain or freezing rain likely after 4am.  Cloudy, with a low around 31. Breezy, with an east wind 15 to 21 mph, with gusts as high as 30 mph.  Chance of precipitation is 70%. Little or no ice accumulation expected.  Little or no snow accumulation expected.

    Low: 31 °F

    Breezy.
    Chance
    Rain/Snow
    then Wintry
    Mix Likely

  • Sunday

    Sunday: Rain before 1pm, then rain and snow, possibly mixed with sleet between 1pm and 4pm, then snow, possibly mixed with sleet after 4pm.  Patchy blowing snow after 4pm. High near 38. Windy, with an east wind 17 to 26 mph becoming north in the afternoon. Winds could gust as high as 40 mph.  Chance of precipitation is 100%. New snow and sleet accumulation of around an inch possible.

    High: 38 °F

    Rain and
    Breezy then
    Wintry Mix
    and Patchy
    Blowing Snow

  • Sunday Night

    Sunday Night: Snow. The snow could be heavy at times.  Widespread blowing snow, mainly after 7pm. Low around 9. Windy, with a north wind around 33 mph, with gusts as high as 46 mph.  Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

    Low: 9 °F

    Heavy Snow
    and Blowing
    Snow

  • Monday

    Monday: A 30 percent chance of snow before 1pm.  Areas of blowing snow. Mostly cloudy, with a high near 15. Windy, with a northwest wind 22 to 31 mph, with gusts as high as 44 mph.

    High: 15 °F

    Chance Snow
    and Areas
    Blowing Snow

  • Monday Night

    Monday Night: Partly cloudy, with a low around -2. Blustery, with a northwest wind 15 to 20 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 29 mph.

    Low: -2 °F

    Partly Cloudy
    and Blustery
    then Mostly
    Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 22. Northwest wind 6 to 8 mph becoming south in the afternoon.

    High: 22 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Snow, mainly before 1am.  Low around 16. South wind 9 to 13 mph, with gusts as high as 21 mph.  Chance of precipitation is 80%.

    Low: 16 °F

    Snow

Detailed Forecast

Overnight
Mostly cloudy, with a low around 26. Calm wind.
Saturday
A 30 percent chance of snow, mainly before 3pm. Mostly cloudy, with a high near 39. Light southeast wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 18 mph.
Saturday Night
Rain and snow likely before 3am, then rain likely between 3am and 4am, then rain or freezing rain likely after 4am. Cloudy, with a low around 31. Breezy, with an east wind 15 to 21 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. Little or no ice accumulation expected. Little or no snow accumulation expected.
Sunday
Rain before 1pm, then rain and snow, possibly mixed with sleet between 1pm and 4pm, then snow, possibly mixed with sleet after 4pm. Patchy blowing snow after 4pm. High near 38. Windy, with an east wind 17 to 26 mph becoming north in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 100%. New snow and sleet accumulation of around an inch possible.
Sunday Night
Snow. The snow could be heavy at times. Widespread blowing snow, mainly after 7pm. Low around 9. Windy, with a north wind around 33 mph, with gusts as high as 46 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.
Monday
A 30 percent chance of snow before 1pm. Areas of blowing snow. Mostly cloudy, with a high near 15. Windy, with a northwest wind 22 to 31 mph, with gusts as high as 44 mph.
Monday Night
Partly cloudy, with a low around -2. Blustery, with a northwest wind 15 to 20 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 29 mph.
Tuesday
Mostly sunny, with a high near 22. Northwest wind 6 to 8 mph becoming south in the afternoon.
Tuesday Night
Snow, mainly before 1am. Low around 16. South wind 9 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 80%.
Wednesday
Mostly sunny, with a high near 41. South wind around 7 mph becoming west in the afternoon.
Wednesday Night
Partly cloudy, with a low around 30. Southwest wind 3 to 5 mph.
Thursday
Partly sunny, with a high near 50. Southwest wind 6 to 8 mph.
Thursday Night
Mostly cloudy, with a low around 32. Southwest wind around 7 mph becoming northwest after midnight.
Friday
Partly sunny, with a high near 52. Northwest wind 6 to 9 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles NNE Castalia IA
 43.19°N 91.62°W
2:11 am CDT Mar 14, 2026
3am CDT Mar 14, 2026-6pm CDT Mar 20, 2026
 
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